3 years ago

Please help i dont undertand it

2 answers:

6 0

1/2 of the rectangle is shaded and they are looking for area so it would be 14 times 8 and to combine that it would be 1/2(14 times 8)=56

5 0

B
AKA 2

I have Khan Acadamy!!

Your welcome!

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Natali5045456 [20]

Answer:

$\boxed{\pink{\tt \leadsto Sum \ of \ first \ five \ terms \ is \ 50 . }}$

Step-by-step explanation:

Given that , the sum of the first nine terms of an arithmetic series is 162 and the sum of the first 12 terms is 288.

$\boxed{\red{\bf \bigg\lgroup For \ answer \ refer \ to \ attachment \bigg\rgroup }}$

<h3>Related Information :- </h3>

• The sum of n terms of an AP is

$\boxed{\orange{\sf S_n = \dfrac{n}{2}[2a+(n-1)d] }}$

• nth term of an AP is given by ,

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2 years ago